Reenforcement connected with reenforced concrete buildings, slabs, playgrounds, and such like



Feb. 7, 1933. w. J. F. HUTcHEsoN 1,896957 EEEEEEEEEEEEEEEEEEEEEEEEEEE EENFORCED CONCRETE Patented Feb. 7, 1933 UNITED V STATSV WILLIAM JAMES rRAsER HUTcHEsomor REENFORCEMENT CONNECTED WITH REENFORCED CONCRE'I'E BUILDINGS, SLAIBS, PLAYGROUNDS, AND SUCH LIKE Application file May 7, 1930, Serial No.l450,449, and in Great Britain April' 7, 1980. p

My invention relates to improvements in and relating to reenforcement connected with reenforced concrete buildings, slabs, playgrounds, and such like, and has for its obj ect inter alia to so construct such reenforcement as to be capable of taking various stresses and take up little room in storage or transit, thus considerably reducing the freight for such.

According to this invention, the reenforcement, consists of deep thin bars of steel or other suitable metal, of suitable depths and thicknesses, slotted to allow the top and bottom bars to engage freely and be` assembled to constitute the reenforcement, which is capable of expanding to present a series of squares or of being contracted or brought closer together to form a series of diamonds of any Width, the whole being flexibly secured together by thin keys of flexible wire or such like at two angles, so that one Square yard of the reenforcement when completely collapsed or closed up Will occupy a very small space in storage or transport, the space for such being about six feet long by about one inch broad.

In order that my inventionpmay be propi erly understood and readily carried into effect, I have hereunto appended one sheet of drawing, of which Figures 1 and 2 are views respectively of the top and bottom bars of which the reenforcement is constructed showing the barslots and wire-key holes.

Figure 8 is a view showing the reenforcement -assembled or made up.

Figure 4 is a view showing reenforcement open full into squares.

Figure 5 is a view showing reenforcement' partially collapsed or closed into diamond sections.

Figure 6 is a view showing reenforcement collapsed or closed up for storage or transit. Figure 7 is a view showing how one fabric r is connected to another.

i Referring to the drawing, and B the slots by which the bars A are connected'to each other to form the reenforcement. C are the holes in the bars through which the keys D are passed to secure the bars A flexibly in the extended or open position in the form of squares E, as in Figure 4, or partially closed or collapsed as in the form of diamonds F, as'in Figure 5. When,l completely collapsed or closed up for storage or transit, the ends of thekeys D being of a flexible nature, are simply bentover and lie alongside the bars A and are out of the way. p Y v The reenforcements can be made of any size and one can be readily fixed to another, as indicated in Figure 7. G being part of A are the bars,

one reenforcement and H part of another connected together.

The reenforcement is applicable for reenforcing concrete floor and roof slabs, soV that for light stresses, it may be used fully opened out into squares E, as in Figure 4, and for heavy stresse's, when more metal is required per Square yard, the reenforcement can be partially closed or collapsed into narrow diamonds F, as in Figure 5. From the foregoing it willV be obvious that the reenforcement is capable of fulfilling any requirement in loads Without any special size or weight of fabric like the welded wire meshes and expanded metal reenforcements at present in use.

The reenforcement can also be laidV in concrete as a surface reenforcement to prevent surface wear and cracks in concrete roads, large garage floors, play-grounds, and the like, when heavy' wear hasto be withst'ood from heavy wheel trafic or other pounding and scouring agencies.

I claim:

1 A reenforcement for concrete construction and-for use as armour for cement and asphalt surfacesor other compositions comprising two crossing sets of bars, each bar being f sov ar and keys for conneeting the bars loosely together, each key having a hooked end. i

WILLIM'JAMES FRASER HUTCHESON.

slotted to allow the bars to engage with each other, apertures in each bar Opening into said slots, and keys passing through said apertures.

-Reenforcement for reenforced conerete buildings, slabs, play-grounds, and the like, comprising two crossing sets of parallel deep thin bars of steel, Veach bar being slotted to allow the bars to engage With each other freely, thereby providing sections capable of being enlarged or reducedaooording to the stress, and also oapableof being collapsed, 

